A Deeper Shade of Blue

According to multiple studies, it is estimated that about 10% to 15% of women suffer from depression during pregnancy. Given the concerns regarding the use of medications during pregnancy and the incomplete information regarding the reproductive safety of certain antidepressants, there is a need for effective non-pharmacologic options for the treatment of depression during pregnancy.

Bright light therapy may be an attractive option, and in a preliminary study it was shown to be effective for women suffering from depression during pregnancy. In this pilot study, 16 pregnant women with major depression received treatment with morning light therapy. After 3 weeks, mean depression ratings on the Hamilton Depression Rating Scale improved by 49%, with half of the women experiencing a complete remission.

Researchers at Yale University and the University of Pittsburgh are now conducting a clinical trial in order to better evaluate the effectiveness of light therapy for women suffering from depression during pregnancy.

The New York Times recently had a very helpful article on the use of light therapy for those who suffer from seasonal depression. Some important points:

• The incidence of seasonal affective disorder (SAD) rises with increasing latitude, ranging from 1.4 percent among the residents of Florida to as high as 9.7 percent among those who live in New Hampshire.

• January and February are the worst months for people with SAD.

• Many patients get good results from only half an hour of light therapy each day.

• Full spectrum light is not necessary; ordinary fluorescent light bulbs with an intensity of 10,000 lux (about 10 to 20 times as bright as ordinary indoor light) are effective.

This article also includes information on where to get a good light box.